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Analysis of dispersive characteristics of guided waves for multi-layered structure of solid rocket motor shell(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2008年05期
Page:
16-21
Research Field:
研究与设计
Publishing date:

Info

Title:
Analysis of dispersive characteristics of guided waves for multi-layered structure of solid rocket motor shell
Author(s):
Ai Chun'an; Gao Lirong; Wu Anfa
The Second Artillery Engineering College，Xi'an，710025，China
Keywords:
solid rocket motor; multi-layered structure; guided waves; dispersion curve
PACS:
V435
DOI:
-
Abstract:
It is an efficient method to detect multi-layered structure of solid rocket motor by guided wave．This paper made use of global matrix method，inferred the dispersion equation of mul— ti-layered structure shell．The dispersion curve of four different layer's quantity of shell structures are computed．It shows that with the increase of layer's quantity and the first layer's thickness，the distance between different model curve will decrease。the curve's quantity will increasc，the curves are totally close to zero frequency．This paper also studied the influence of glue layer's quality on dispersion curve．It is found that the curves shift to left when the glue layer goes to bad．

References:

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Last Update: 1900-01-01